An optical glass production apparatus

Abstract

The application relates to the field of laser cutting and discloses optical glass production equipment, which comprises a machine body, a laser cutting assembly and a workbench. A plurality of vacuum adsorbers for supporting optical glass are arranged in the machine body and penetrate through the workbench. A power component for driving vertical lifting of the vacuum adsorbers is arranged at the bottom of the vacuum adsorbers. A pushing assembly connected with the power component and sliding on the workbench is arranged at both sides of the vacuum adsorbers. A clamping assembly synchronous with the pushing assembly is arranged on the pushing assembly. In the application, the optical glass is adsorbed by the vacuum adsorbers, and the pushing assembly and the clamping assembly are connected with the lifting power of the vacuum adsorbers. The optical glass can be positioned and clamped at the outer edge in the downward process of the vacuum adsorbers, so that the surface abrasion and internal stress damage of the optical glass caused by vertical pressure can be avoided. After the clamping assembly clamps the optical glass, the clamping assembly can be automatically locked and positioned, and the optical glass cannot be continuously pressed even if the pushing assembly continuously feeds.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, and specifically relates to an optical glass production equipment. Background Technology

[0002] Optical glass is the core substrate for manufacturing optical components such as lenses, prisms, and filters, and is widely used in optoelectronic instruments, imaging equipment, and precision optical devices. In its production process, a whole glass blank needs to be cut into specified sizes and shapes to meet the requirements of subsequent grinding, coating, and finished product use. This process uses laser cutting to complete the cutting operation, relying on the high-energy laser beam to achieve high-precision, chip-free processing.

[0003] For example, Chinese Patent Publication No. CN117001171B discloses a laser cutting device and method for laminated glass, including a cutting table and a cutting head mounted on the laser cutting device body. During laser cutting, it facilitates clamping and limiting of laminated glass of different sizes, ensuring a constant clamping force between the clamping plates and the laminated glass. This guarantees the clamping effect while preventing damage to the laminated glass. Simultaneously, it can adsorb the bottom of the laminated glass to prevent movement, making it more stable and reliable during laser cutting by the cutting head, ensuring cutting quality. Furthermore, it can automatically blow air to clean the clamping surface of the laminated glass and the surface of the cutting table, ensuring the clamping effect of the laminated glass and preventing tilting after clamping, thereby guaranteeing the cutting quality.

[0004] However, the above application has the following problems:

[0005] On the one hand, the application uses a method of pressing down on the glass to achieve clamping and positioning, which can meet the processing requirements of conventional glass. However, optical glass is sensitive to surface quality and stress. Applying force in the vertical direction can easily cause surface wear or stress effects. Moreover, the clamping force of the existing structure passively changes with the size of the glass. The larger the glass size, the greater the clamping force, and the smaller the size, the smaller the clamping force. It is difficult to achieve a constant and controllable clamping effect, which is not conducive to the stable and damage-free processing requirements of optical glass.

[0006] On the other hand, after the optical glass is processed and the finished optical glass is lifted by the vacuum suction cup, the outer scrap immediately loses its clamping constraint and falls directly onto the workbench surface; once the scrap breaks and shatters, fine glass fragments are scattered, making subsequent cleaning time-consuming and laborious, and greatly increasing the difficulty of cleaning.

[0007] Therefore, it is necessary to provide an optical glass production equipment to solve the above-mentioned technical problems. Summary of the Invention

[0008] The purpose of this invention is to provide an optical glass production apparatus to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an optical glass production equipment, comprising a body, a laser cutting assembly, and a worktable. The body is provided with a plurality of vacuum chucks that penetrate the worktable and are used to support the optical glass. A power component is installed at the bottom of the vacuum chuck to drive it to move vertically. Pushing assemblies connected to the power components and sliding on the worktable are provided on both sides of the vacuum chuck. Clamping assemblies that are fed synchronously with the pushing assemblies are provided on the pushing assemblies.

[0010] During the process of the power component driving the vacuum suction cup downward, the push assembly and clamping assembly on both sides are simultaneously driven to move horizontally toward the optical glass;

[0011] When the power unit drives the suction cup to descend, the push assembly drives the clamping assembly to approach the optical glass horizontally. When the clamping assembly abuts against the side wall of the optical glass, it automatically stops, while the push assembly can continue to approach the optical glass horizontally under the drive of the power unit.

[0012] When the power component drives the suction cup to rise, it can immediately drive the push assembly to move horizontally away from the optical glass, while the clamping assembly can maintain its clamping state with the side wall of the optical glass.

[0013] As a preferred technical solution of the present invention, the power component includes a cylinder, a connecting plate is fixed on the piston rod of the cylinder, and rods are fixed on the bottom end faces of multiple vacuum suction cups. The rods are fixed on the connecting plate, and an L-shaped plate connected to the push assembly is fixed on the rod of the vacuum suction cup. The L-shaped plate pulls the push assembly to move horizontally toward the optical glass for feeding.

[0014] As a preferred technical solution of the present invention, the horizontal section of the L-shaped plate is fixed to the rod of the vacuum suction cup, and a protruding post is fixed on the inner side of the top of its vertical section. The protruding post is embedded in the pushing assembly and drives the pushing assembly to move horizontally by means of the vertical displacement of the L-shaped plate.

[0015] As a preferred technical solution of the present invention, the push assembly includes a main push block, the front surface of the main push block is provided with an inclined groove, and a vertical groove is connected to the top of the inclined groove. The protruding post cuts into the inclined groove to drive the clamping mechanism to approach and clamp the optical glass. The clamping assembly is located at one end of the main push block near the optical glass, and a push spring is assembled between the two.

[0016] As a preferred technical solution of the present invention, the clamping assembly includes an auxiliary push block fixedly connected to a push spring. When the main push block is fed horizontally, the auxiliary push block is pulled synchronously by the push spring. The auxiliary push block has an opening on the side facing the optical glass. An adjusting block that slides horizontally relative to the auxiliary push block is slidably fitted inside the opening. A limiting block that slides vertically relative to the adjusting block is slidably connected to the outer side of the adjusting block close to the optical glass. The top of the limiting block is bent to form a horizontal stop. A telescopic spring for lifting the limiting block is also installed inside the adjusting block.

[0017] As a preferred technical solution of the present invention, the bottom opening of the auxiliary push block is provided with a through groove extending downwards, and a vertical rod is movably inserted in the through groove. The upper end of the vertical rod extends into the inner cavity of the opening of the auxiliary push block, and the side of the vertical rod that is in contact with the adjusting block is inclined. The surface of the worktable is provided with a strip groove for the vertical rod to pass through, and a toothed plate is fixed in the strip groove. When the vertical rod moves down to the bottom end and presses against the toothed plate, the vertical rod is limited and locked by the toothed plate, and the auxiliary push block is constrained and limited.

[0018] As a preferred technical solution of the present invention, one side of the vertical rod is recessed to form a rectangular groove, and a horizontal plate is fixed near the lower end of the groove, the horizontal plate extending into the bottom of the rectangular groove; a return spring is installed between the horizontal plate and the top wall of the rectangular groove, the return spring applying an upward pushing force to the vertical rod; the bottom end face of the vertical rod is machined with a toothed groove, which can be engaged and locked with the teeth of the locking plate; the limiting block is vertically raised along the adjusting block under the drive of the built-in telescopic spring of the adjusting block.

[0019] As a preferred technical solution of the present invention, a T-shaped groove is provided on the inner side of the limiting block, a push plate is slidably inserted into the upper part of the T-shaped groove, an abutment plate is provided at the bottom of the T-shaped groove, and a connecting rod is rotatably connected between the push plate and the abutment plate through a shaft; a return spring is also fixed between the push plate and the T-shaped groove.

[0020] As a preferred technical solution of the present invention, a limiting rod is also fixed at the position of the T-shaped groove wall. The limiting rod is close to the lower end face of the push plate and is used to limit the rotation range of the connecting rod. When the push plate retracts and drives the connecting rod to swing, the connecting rod forms a fulcrum and flips based on the limiting rod.

[0021] As a preferred technical solution of the present invention, the bottom of the push plate is provided with an angle groove for connecting and rotating the connecting rod, and the abutment plate is provided with a through slot for installing the connecting rod. A torsion spring is provided in the slot, and the two ends of the torsion spring are respectively fixed to the connecting rod and the inner wall of the slot; the connecting rod and the abutment plate form an angle through the torsion spring.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] Firstly, in this invention, optical glass is adsorbed by negative pressure using a vacuum suction cup. Combined with a push assembly and a clamping assembly that are linked to the lifting power of the vacuum suction cup, the outer edge of the optical glass can be positioned and clamped simultaneously during the downward movement of the vacuum suction cup, avoiding surface wear and internal stress damage to the optical glass caused by vertical pressure. After clamping the optical glass, the clamping assembly can automatically lock and limit its position, so even if the push assembly continues to feed, it will not continue to press the optical glass, thus preventing the optical glass from being damaged by excessive pressure.

[0024] Secondly, by adding a push plate, connecting rod, and abutment plate to form a linkage support structure, the present invention can support and hold the bottom surface of the optical glass when clamping it. When the optical glass moves down, the limiting block is pulled along by the downward pressure of the glass, which further avoids friction and scratches on the glass surface. At the same time, after laser cutting, the vacuum suction cup lifts the intermediate finished product, the abutment plate supports it from the bottom, and the upper edge of the limiting block clamps the outer scrap from the top, preventing the scrap from falling and breaking without restraint. This reduces the loss of optical glass and facilitates the collection, cleaning and tidying of scrap. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is an assembly diagram of the power unit, the jacking assembly, and the clamping assembly;

[0027] Figure 3 An exploded view of the connection between the main pusher block and the L-shaped plate;

[0028] Figure 4 for Figure 2 Sectional view at point AA;

[0029] Figure 5 This is a schematic diagram showing the connection between the vertical rod and the horizontal plate;

[0030] Figure 6 This is a cross-sectional view of the push rod, connecting rod, and abutment plate assembled within the limit block.

[0031] Figure 7 for Figure 6 Enlarged view of region A in the middle;

[0032] Figure 8 This is a schematic diagram showing the positions of the push rod, connecting rod, abutment plate, and limit rod.

[0033] Figure 9 This is a schematic diagram of the limit block.

[0034] In the picture:

[0035] 1. Machine body; 101. Laser cutting assembly; 102. Worktable; 103. Vacuum suction cup; 104. Gear plate;

[0036] 2. Main push block; 201. Inclined groove; 201a. Vertical groove; 202. Push spring;

[0037] 3. Auxiliary push block; 301. Adjusting block;

[0038] 302. Limit block;

[0039] 302a, irregularly shaped block; 302b, T-slot; 302c, limiting rod;

[0040] 303, telescopic spring; 304, through groove; 304a, horizontal plate;

[0041] 4. Cylinder; 401. Connecting plate; 402. L-shaped plate; 403. Protruding column;

[0042] 5. Vertical rod; 501. Return spring; 502. Tooth groove;

[0043] 601, push plate; 602, connecting rod; 603, abutment plate; 603a, groove. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figures 1 to 5 This invention provides an optical glass production device, mainly used to clamp and limit the outer edge of the optical glass after it is in place, relying on a mechanical linkage structure to avoid damage caused by manual pressing of the glass. The production device includes a body 1, inside which a laser cutting assembly 101 is assembled. This laser cutting assembly 101 is an existing movable laser cutting structure, capable of autonomous displacement to complete the laser processing of the optical glass. The specific structure and working principle of the laser cutting assembly 101 can be selected from existing technologies, and will not be elaborated further in this invention.

[0046] A worktable 102 is provided below the laser cutting assembly 101. Multiple vacuum suction cups 103, penetrating the worktable 102, are also provided inside the machine body 1. The vacuum suction cups 103 are used to place and support optical glass. After the optical glass is in place, an external vacuum pump (not shown in the figure) extracts the air between the vacuum suction cup 103 and the contact surface of the optical glass, achieving adsorption and fixation of the optical glass through negative pressure. A power component is installed at the bottom of the vacuum suction cup 103 to drive its vertical lifting. Pushing components are arranged on the left and right sides of the vacuum suction cup 103, and the pushing components are connected to the power component. During the downward movement of the vacuum suction cup 103, the power component simultaneously drives the pushing components on both sides to move horizontally towards the optical glass. A clamping component is connected to the front end of the pushing component and drives it to move synchronously. Once the clamping component is in contact with and clamps the optical glass, it automatically locks and limits its movement. Even if the pushing component continues to move forward under the drive of the power component, the clamping component will no longer move accordingly to prevent excessive compression and damage to the optical glass.

[0047] This invention uses vacuum suction cup 103 to adsorb under negative pressure, and completes the positioning and clamping of the outer edge of the glass through mechanical linkage during the synchronous process of the vacuum suction cup 103 descending. This avoids the wear and internal stress damage on the surface of the optical glass caused by vertical pressure. At the same time, the clamping component can automatically lock the position after clamping the optical glass, effectively preventing the problem of the optical glass breaking under pressure due to excessive clamping force.

[0048] Reference Figure 2 In this embodiment, preferably, the power component includes a cylinder 4, a connecting plate 401 is fixed on the piston rod of the cylinder 4, and a rod is fixed on the bottom end face of each vacuum suction cup 103. All rods are uniformly fixed on the connecting plate 401. A single set of cylinders 4 can synchronously drive all vacuum suction cups 103 to achieve overall lifting and lowering, thereby achieving the overall horizontal lifting and lowering of the optical glass. An L-shaped plate 402 is fixed on the rod of the vacuum suction cup 103 (the L-shaped plate 402 can also be installed on either the piston rod of the cylinder 4 or the connecting plate 401). The L-shaped plate 402 is connected to the push assembly and, during the process of moving down with the vacuum suction cup 103, relies on the vertical downward stroke of the cylinder 4 to pull the push assembly to move horizontally towards the optical glass side for feeding.

[0049] In the above structure, the vacuum suction cup 103 has at least one suction hole, which is connected to an external vacuum device via a flexible tube; the pipeline and interface are existing mature structures and are not shown in the attached drawings.

[0050] Furthermore, refer to Figure 3 The horizontal section of the L-shaped plate 402 is fixed to the rod of the vacuum suction cup 103, and a protruding post 403 is fixed on the inner side of the top of its vertical section. The protruding post 403 is embedded in the push assembly and drives the push assembly to move horizontally by the vertical displacement of the L-shaped plate 402.

[0051] Reference Figure 2 and Figure 3 In this embodiment, preferably, the pushing assembly includes a main pushing block 2. The front surface of the main pushing block 2 has an inclined groove 201, and the top of the inclined groove 201 is connected to a vertical groove 201a. When the vacuum suction cup 103 is not descending, the protruding post 403 is movably inserted into the vertical groove 201a, forming an empty travel segment with the help of the vertical groove 201a. During the vertical sliding of the protruding post 403 within the vertical groove 201a, it will not drive the main pushing block 2 to move horizontally. The vacuum suction cup 103 can quickly descend to the designated workstation with the already adsorbed and fixed optical glass, avoiding the problem of the optical glass being prematurely clamped and locked by the limiting block 302 during its descent, preventing it from falling to the standard clamping point. Simultaneously, the groove length of the vertical groove 201a can be flexibly set according to the required descent distance of the vacuum suction cup 103, precisely matching the arrival sequence of the optical glass, ensuring that only… After the optical glass sinks to the standard clamping position, the protruding post 403 cuts into the inclined groove 201 and drives the clamping mechanism to close and clamp the optical glass, ensuring that the clamping point is uniform and standardized. When the cylinder 4 moves downward, the L-shaped plate 402 drives the protruding post 403 to move down along the vertical groove 201a first, and then slide into the inclined groove 201. Subsequently, the protruding post 403 applies downward pressure to the side wall of the inclined groove 201. Using the inclined surface force, the main push block 2 is driven to feed horizontally towards the optical glass side (in order to avoid excessive friction between the protruding post 403 and the inclined groove 201 and cause jamming, a bearing ring or a rotatable metal sleeve can be fitted on the outside of the protruding post 403 to reduce friction by rolling). The clamping assembly is set at the end of the main push block 2 close to the optical glass, and the two are fixedly assembled with a push spring 202 by spot welding.

[0052] Reference Figure 3 and Figure 4 In this embodiment, preferably, the clamping assembly includes an auxiliary push block 3, which is fixedly connected to a push spring 202. When the main push block 2 is fed horizontally, the auxiliary push block 3 is pulled synchronously by the push spring 202. The auxiliary push block 3 has an opening on the side facing the optical glass, and an adjusting block 301 is slidably assembled inside the opening. The adjusting block 301 and the auxiliary push block 3 are fitted with a non-through dovetail groove limiting fit (not shown in the figure), so that the adjusting block 301 can only slide horizontally relative to the auxiliary push block 3 and cannot be dislodged. The adjusting block 301 is slidably connected to a limiting block 302 close to the outer side of the optical glass. The two are also fitted with a non-through dovetail groove limiting fit (not shown in the figure). The limiting block 302 serves as a force-bearing component for clamping the optical glass. Its top end is bent to form a horizontal stop. In clamping the optical glass, it can limit the optical glass from both the side and the upper edge, further improving the reliability of clamping and positioning the optical glass.

[0053] In the above structure, refer to Figure 4The limiting block 302 can slide vertically relative to the adjusting block 301. The adjusting block 301 is also equipped with a telescopic spring 303, which lifts the limiting block 302 upward under normal conditions. After the limiting block 302 is initially clamped with the optical glass, the cylinder 4 continues to descend and drives the main push block 2 to continue horizontal feeding via the L-shaped plate 402. The limiting block 302, which has completed the initial clamping with the optical glass, will move down synchronously with the optical glass, effectively preventing the optical glass from being damaged by friction and scratches relative to the limiting block 302 (if the limiting block 302 and the adjusting block 301 are fixed structures, the descent of the optical glass will generate resistance with the inner wall of the limiting block 302, resulting in a large friction force). While the limiting block 302 slides vertically relative to the adjusting block 301 by relying on the dovetail groove, it pushes the adjusting block 301 to move towards the inside of the opening of the auxiliary push block 3.

[0054] Furthermore, refer to Figure 3 and Figure 4 A through groove 304 is formed downwards from the bottom opening of the auxiliary push block 3. A vertical rod 5 is movably inserted into the through groove 304. The upper end of the vertical rod 5 extends into the inner cavity of the opening of the auxiliary push block 3. The vertical rod 5 is inclined against one side of the adjusting block 301. After the limiting block 302 clamps the limiting optical glass, the adjusting block 301 is locked and positioned. Subsequently, the main push block 2 continues to drive the auxiliary push block 3 forward, and the auxiliary push block 3 drives the vertical rod 5 to move synchronously, so that the inclined surface of the vertical rod 5 abuts against the already limited optical glass. Driven by the reaction force of the adjusting block 301, the vertical rod 5 slides down along the through groove 304. The surface of the worktable 102 is provided with a strip groove for the vertical rod 5 to pass through. A toothed plate 104 is fixed in the strip groove. When the vertical rod 5 moves down to the bottom and presses against the toothed plate 104, the vertical rod 5 is limited and locked by the toothed plate 104, thereby constraining the auxiliary push block 3 to stop moving forward and preventing the clamping structure from continuously pressing the optical glass, so as to achieve constant and controllable clamping force.

[0055] This invention utilizes the cooperation of an auxiliary pusher block 3, a vertical rod 5, an adjusting block 301, and a toothed plate 104. After the limiting block 302 clamps and fixes the optical glass and the adjusting block 301 remains stationary, the main pusher block 2 continuously feeds, driving the auxiliary pusher block 3 forward. The adjusting block 301 presses against the inclined surface of the vertical rod 5, forcing the vertical rod 5 to move downward along the through groove 304. Finally, the lower end of the vertical rod 5 engages and locks with the toothed plate 104, restricting the auxiliary pusher block 3 from moving forward. The clamping feed stroke can be automatically cut off without the need for additional locking drive components, precisely controlling the clamping force and effectively preventing the optical glass from being excessively squeezed and broken. The entire locking action can be achieved using the existing cylinder 4's linkage power. At the same time, the toothed fine-tuning adaptation structure can compensate for the optical glass placement deviation, improving the equipment's clamping stability and product processing qualification rate.

[0056] Furthermore, refer to Figure 5The vertical rod 5 is concave on the inside, forming a rectangular groove. A horizontal plate 304a is fixed near the lower end of the through groove 304, extending into the bottom of the rectangular groove. A return spring 501 is installed between the horizontal plate 304a and the top wall of the rectangular groove. Under normal conditions, the return spring 501 continuously applies an upward pushing force to the vertical rod 5. This allows the vertical rod 5 to be lifted and reset after the clamping mechanism releases the optical glass and the limiting block 302 releases its pressure on the optical glass. Simultaneously, the adjusting block 301 is pushed outward from the auxiliary push block 3. In the initial stage of the holding action, the vertical rod 5 is lifted, keeping its bottom end separate from the toothed plate 104. To ensure a stable engagement between the vertical rod 5 and the toothed plate 104, the bottom surface of the vertical rod 5 is machined with a toothed groove 502, which can engage and lock with the teeth of the toothed plate 104. The tooth pitch between the toothed groove 502 and the toothed plate 104 is small, so even if the teeth cannot be precisely aligned and engaged when the vertical rod 5 initially falls, the position can still be slightly adjusted under the micro-feeding push of the main push block 2, eventually completing the engagement and locking. After the laser cutting assembly 101 completes the cutting of the optical glass... After the cutting operation, the optical glass cut seam is formed, but the finished product in the middle is still connected to the outer residual material. Then, the piston rod of cylinder 4 retracts and resets, driving the vacuum suction cup 103 to push the optical glass upward. At the same time, the L-shaped plate 402 of the main push block 2 in the lifting state moves in the opposite direction. During the retraction of the main push block 2, the pressure-stored push spring 202 gradually releases its elastic force. Under the action of the spring's residual thrust, the auxiliary push block 3 temporarily remains in place, and the limiting block 302 continues to press against the outer edge of the optical glass, making it easier for the vacuum suction cup 103 to lift the finished product in the middle. The process involves separating the finished product from the outer scraps after cutting. Once the optical glass has been lifted and separated, the push spring 202 fully returns to its original state and pulls the auxiliary push block 3 backward in sync. The limit block 302 then releases its clamping constraint on the optical glass. Driven by the extension spring 303 built into the adjustment block 301, the limit block 302 is lifted vertically along the adjustment block 301. At the same time, the return spring 501 pushes the vertical rod 5 upward and pushes the adjustment block 301 outward from the opening of the auxiliary push block 3. The entire mechanism returns to its initial working condition.

[0057] In summary, the power of the vacuum suction cup 103 driven by a single cylinder 4 is converted into the horizontal feeding power of the main push block 2 through the L-shaped plate 402 and the convex post 403 in conjunction with the inclined groove 201. This eliminates the need for multiple independent drive sources to simultaneously complete the negative pressure adsorption and side clamping operations of the optical glass, significantly simplifying power components and reducing production costs. At the same time, the limiting block 302 can float vertically under the action of the telescopic spring 303, and sinks synchronously with the optical glass during clamping, avoiding scratches caused by relative friction between the glass and the limiting block 302. After the limiting block 302 is in place, it drives the adjusting block 301 to lock. When the auxiliary push block 3 continues to move forward, it uses the adjusting block 301 to press the inclined surface of the vertical rod 5, causing the vertical rod 5 to move down along the through groove 304 and engage with the toothed plate 104 on the worktable 102 for limiting, automatically terminating the feeding stroke of the auxiliary push block 3. The mechanical structure achieves the function of constant clamping force, avoiding the phenomenon of over-clamping and damaging the optical glass, effectively improving the clamping accuracy of the optical glass and the yield of finished products.

[0058] During the reset phase after processing, the outer residual material is separated by the energy-storing rebound of the push spring 202. When the piston rod of cylinder 4 retracts and drives the vacuum suction cup 103 to lift the cut optical glass, the L-shaped plate 402 simultaneously pulls the main push block 2 backward. At this time, the pressurized and energy-storing push spring 202 will not immediately retreat with the main push block 2. The residual elastic force continues to press the auxiliary push block 3 forward, allowing the limiting block 302 to stably hold the edge of the outer residual material of the optical glass. The vacuum suction cup 103 lifts the middle finished product upward, and the buffering and pressure-holding effect of the push spring 202 firmly locks the position of the outer residual material, successfully completing the separation of the finished product and the scrap. After the separation is completed, the push spring 202 fully releases its energy and rebounds, then pulls the auxiliary push block 3 back as a whole. The clamping mechanism is released; the telescopic spring 303 normally lifts the limiting block 302 upwards, and during the clamping phase, it can support the limiting block 302 to float vertically with the glass to prevent friction and scratches. During the reset, it pushes the limiting block 302 back to its original position; the return spring 501 normally lifts the vertical rod 5 so that its bottom end is disengaged from the toothed plate 104 and maintains the extended standby state of the adjusting block 301. After being compressed by locking force, it can lift the vertical rod 5 during the reset to release the engagement between the toothed groove 502 and the toothed plate 104, and simultaneously push the adjusting block 301 to reset outwards. The three springs respectively undertake different functions of floating buffer, clamping and holding pressure locking material, and mechanism reset and unlocking. Relying on the energy storage characteristics of each spring, the remaining material on the periphery can be stably limited without additional locking material drive components, ensuring the smooth operation of the separation process after cutting.

[0059] Please see Figures 6 to 9 To avoid the problem of the outer edge scraps falling and breaking after the finished optical glass is lifted, which would be inconvenient to clean, and the problem of scratches easily caused by relying solely on friction to move the limiting block 302 downward during the optical glass's downward movement, the structure of the limiting block 302 has been further optimized and improved. A T-shaped groove 302b is provided on the inner side of the limiting block 302 (the specific shape can be found in [reference]). Figure 9A push plate 601 is slidably inserted into the upper part of the T-slot 302b. The push plate 601 can slide horizontally along the top of the T-slot 302b. To prevent the two from separating and to limit the push plate 601 to only horizontal movement, the push plate 601 and the T-slot 302b are also connected by a non-through dovetail groove structure (not shown in the figure). An abutment plate 603 is provided at the bottom of the T-slot 302b. The push plate 601 and the abutment plate 603 are connected by a shaft rotation. A connecting rod 602 is connected; during the clamping of the optical glass, the limiting block 302 is horizontally close to the optical glass. The lower part of the side wall of the optical glass first presses against the push plate 601, causing the push plate 601 to retract toward the inside of the T-slot 302b. Through the rotation of the connecting rod 602, the abutment plate 603 is driven to rise upward, and the abutment plate 603 supports the bottom surface of the optical glass. At this time, the upper part of the side wall of the optical glass is in contact with the inner wall of the limiting block 302, and its top edge is limited by the limiting block 302. The top bend edge is used for positioning. During the subsequent descent of the optical glass, the limiting block 302 can be moved downwards by the side wall and the limiting block 302, and the optical glass can also be pressed down by the abutment plate 603 to move the limiting block 302 downwards. This avoids glass impact damage caused by friction alone. In order to make the push plate 601 return to its original position, a reset spring (not shown in the figure) should also be fixed between the push plate 601 and the T-slot 302b. After the laser cutting is completed and the finished glass is lifted by the vacuum suction cup, the abutment plate 603 supports the bottom of the outer edge scrap and the top edge of the limiting block 302 presses down on the top of the edge scrap, so that the edge scrap is continuously clamped and fixed and will not fall freely, which facilitates the subsequent unified material removal and cleaning.

[0060] Furthermore, refer to Figure 7 and Figure 8 A limiting rod 302c is also fixed at the groove wall of the T-shaped groove 302b. The limiting rod 302c is close to the lower end face of the push plate 601 and is used to limit the rotation range of the connecting rod 602. When the push plate 601 retracts and drives the connecting rod 602 to swing, the connecting rod 602 forms a fulcrum and flips based on the limiting rod 302c.

[0061] Furthermore, refer to Figure 8 The bottom of the push plate 601 has an angled groove (not shown in the figure) for connecting and rotating the connecting rod 602, while the abutment plate 603 has a through slot 603a for mounting the connecting rod 602. A torsion spring (not shown in the figure) is installed in the slot 603a, and the two ends of the torsion spring are fixed to the connecting rod 602 and the inner wall of the slot 603a, respectively. Under normal conditions, the connecting rod 602 and the abutment plate 603 maintain a fixed angle under the action of the torsion spring (see Figure 603). Figure 8When clamping the optical glass, the push plate 601 moves inward, causing the connecting rod 602 to flip. The initially horizontally arranged abutment plate 603 tilts accordingly. The connecting rod 602 continues to lift the abutment plate 603 until the top surface of the abutment plate 603 is in contact with the bottom surface of the optical glass. Due to the limiting constraint of the optical glass, the abutment plate 603 gradually returns to the horizontal position from the tilt, and the torsion spring is compressed simultaneously. With the help of the torsion spring's elastic force, the abutment plate 603 is pressed tightly against the bottom surface of the glass to complete the elastic support.

[0062] Reference Figure 7 It should be noted that the lower part of the connecting rod 602 and the abutment plate 603 are both suspended and unobstructed. When the push plate 601 retracts into the limiting block 302 along the T-slot 302b, even if the connecting rod 602 has a downward stroke initially, as the push plate 601 continues to retract into the limiting block 302, the connecting rod 602 will exceed the downward stroke under the action of the limiting rod 302c and eventually tilt and rise, thereby driving the top of the abutment plate 603 to contact the optical glass, and changing the contact between the abutment plate 603 and the optical glass from point contact to surface contact.

[0063] Meanwhile, the push plate 601 and the limiting rod 302c have a gap in the vertical direction, so that when the push plate 601 slides horizontally and retracts into the limiting block 302 along the T-shaped groove 302b, it will not interfere with the limiting rod 302c.

[0064] By adding a push plate 601, a connecting rod 602, and an abutment plate 603 to the limiting block 302 to form a linkage support structure, when clamping optical glass, the push plate 601 can be squeezed by its side wall, and the abutment plate 603 can be elastically supported by the connecting rod 602 to support the bottom surface of the glass. When the optical glass moves down, the limiting block 302 is pulled along by the glass pressing down on the abutment plate 603, which further avoids friction and scratches on the glass surface. After laser cutting, the vacuum suction cup lifts the intermediate finished product, the abutment plate 603 supports it from the bottom, and the upper edge of the limiting block 302 clamps the outer edge from the top, preventing the edge from falling and breaking without restraint. This reduces the loss of optical glass and facilitates the collection and cleaning of edge. The torsion spring can also drive the components to automatically reset after the material is released, ensuring the stable operation of the mechanism.

[0065] In summary, the overall working principle of optical glass production equipment will now be explained:

[0066] The optical glass to be processed is placed on the vacuum suction cup 103. An external vacuum pumping device draws air through the suction hole of the suction cup 103, and the negative pressure firmly adsorbs the optical glass onto the end face of the suction cup. Then, the cylinder 4 of the power unit starts to move downward. The piston rod of the cylinder 4 moves down synchronously with the connecting plate 401. The connecting plate 401 drives all the vacuum suction cups 103 and the L-shaped plate 402 fixed on the suction cup rod to descend together. The protrusion 403 of the vertical section of the L-shaped plate 402 first slides vertically in the vertical groove 201a of the main push block 2. Then, the protrusion 403 slides into the inclined groove 201 and relies on the downward squeezing force to convert the inclined structure into a horizontal thrust, driving the two main push blocks 2 to move horizontally towards the optical glass.

[0067] The main pusher 2, driven by the push spring 202, moves the auxiliary pusher 3 and the limiting block 302 towards the optical glass simultaneously. During the movement of the limiting block 302, the lower end of the side wall of the optical glass touches the push plate 601 first. The push plate 601 is squeezed and slides inward along the T-shaped groove 302b. With the cooperation of the limiting rod 302c limiting the flipping fulcrum of the connecting rod 602, the connecting rod 602 pryes the abutment plate 603 to rise. The abutment plate 603 slowly turns from inclined to horizontal and compresses the torsion spring in the groove. It relies on the elastic force of the torsion spring to stick tightly to the bottom surface of the optical glass to complete the support. At this time, the side wall of the optical glass is pressed against the inner wall of the limiting block 302, and the upper edge is limited by the bending part of the top of the limiting block 302, so as to achieve synchronous positioning of the upper and lower and side sides of the optical glass.

[0068] As cylinder 4 continues to drive vacuum suction cup 103 downwards, the optical glass moves downwards with vacuum suction cup 103, and pulls the limiting block 302 downwards synchronously through its own downward pressing against the abutment plate 603. After the optical glass is clamped and positioned, the adjusting block 301 is limited and locked and cannot move further. When the auxiliary push block 3 continues to move forward with the main push block, the adjusting block 301 abuts against the inclined surface of the vertical rod 5, forcing the vertical rod 5 to slide downwards along the through groove 304 on the auxiliary push block 3. The toothed groove 502 at the bottom of the vertical rod 5 is inserted into the toothed plate 104 inside the strip groove of the worktable 102. After the vertical rod 5 is locked and fixed, the auxiliary push block 3 is restricted from continuing to feed. The clamping force is kept constant by mechanical locking. During this stage, the return spring 501 in the rectangular groove inside the vertical rod 5 is compressed and stores energy.

[0069] After the optical glass is clamped and positioned, the laser cutting component 101 inside the machine body 1 moves autonomously according to the preset trajectory to laser cut the optical glass. After the cutting is completed, the finished product and the outer scrap are separated but still stick to each other. Then the piston rod of the cylinder 4 retracts and moves upward, driving the vacuum suction cup 103 to lift the optical glass upward. The main push block 2 moves backward in the opposite direction along with the L-shaped plate 402 and the protrusion 403. The compressed push spring 202 slowly releases its elasticity and initially keeps the auxiliary push block 3 stationary. The abutment plate 603 supports the bottom of the outer scrap, and the upper edge of the limit block 302 presses down on the upper end of the scrap. The scrap is clamped in both directions and will not fall or break. The vacuum suction cup lifts the middle finished product, so that the finished product and the scrap can be smoothly separated into layers.

[0070] Once the optical glass separation is complete, the push spring 202 fully rebounds and pulls the auxiliary push block 3 back to release the clamp. After the limit block 302 loses its optical glass limit, it resets upward along the adjusting block 301 under the drive of the telescopic spring 303. At the same time, the return spring 501 pushes the vertical rod 5 away from the toothed plate 104. During the upward movement of the vertical rod 5, it pushes the adjusting block 301 outward from the opening of the auxiliary push block 3. The torsion spring synchronously drives the abutment plate 603, connecting rod 602, and push plate 601 to reset. The entire mechanism returns to its initial state, and the loading of the lower optical glass can then be carried out.

[0071] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical glass production apparatus comprising a machine body, a laser cutting assembly and a worktable, a plurality of vacuum chucks for supporting optical glass are arranged in the machine body and penetrate the worktable, characterized in that: The bottom of the vacuum suction cup is equipped with a power component that drives it to move vertically. On both sides of the vacuum suction cup, there are push components that are connected to the power component and slide on the worktable. The push components are equipped with clamping components that feed synchronously with the push components. During the process of the power component driving the vacuum suction cup downward, the push assembly and clamping assembly on both sides are simultaneously driven to move horizontally toward the optical glass; When the power unit drives the suction cup to descend, the push assembly drives the clamping assembly to approach the optical glass horizontally. When the clamping assembly abuts against the side wall of the optical glass, it automatically stops, while the push assembly can continue to approach the optical glass horizontally under the drive of the power unit. When the power component drives the suction cup to rise, it can immediately drive the push assembly to move horizontally away from the optical glass, while the clamping assembly can maintain its clamping state with the side wall of the optical glass.

2. The optical glass production equipment according to claim 1, characterized in that: The power component includes a cylinder, a connecting plate is fixed on the piston rod of the cylinder, and rods are fixed on the bottom end faces of multiple vacuum suction cups. The rods are fixed on the connecting plate, and an L-shaped plate connected to the push assembly is fixed on the rod of the vacuum suction cup. The L-shaped plate pulls the push assembly to move horizontally toward the optical glass.

3. The optical glass production equipment according to claim 2, characterized in that: The horizontal section of the L-shaped plate is fixed to the rod of the vacuum suction cup, and a protruding post is fixed on the inner side of the top of its vertical section. The protruding post is embedded in the push assembly and drives the push assembly to move horizontally by the vertical displacement of the L-shaped plate.

4. The optical glass production equipment according to claim 3, characterized in that: The pushing assembly includes a main pushing block, the front surface of which has an inclined groove, and a vertical groove is connected to the top of the inclined groove. The protruding post cuts into the inclined groove to drive the clamping mechanism to approach and clamp the optical glass. The clamping assembly is located at the end of the main pushing block near the optical glass, and a pushing spring is assembled between the two.

5. The optical glass production equipment according to claim 4, characterized in that: The clamping assembly includes an auxiliary push block fixedly connected to a push spring. When the main push block is fed horizontally, the auxiliary push block is pulled synchronously by the push spring. The auxiliary push block has an opening on the side facing the optical glass. An adjusting block that slides horizontally relative to the auxiliary push block is slidably fitted inside the opening. A limiting block that slides vertically relative to the adjusting block is slidably connected to the outside of the adjusting block close to the optical glass. The top of the limiting block is bent to form a horizontal stop. A telescopic spring for lifting the limiting block is also installed inside the adjusting block.

6. The optical glass production equipment according to claim 5, characterized in that: The auxiliary push block has a through groove extending downwards from the bottom of its opening. A vertical rod is inserted through the groove, with its upper end extending into the inner cavity of the auxiliary push block's opening. The side of the vertical rod that is in contact with the adjusting block is inclined. The surface of the worktable has a strip-shaped groove for the vertical rod to pass through. A toothed plate is fixed in the strip-shaped groove. When the vertical rod moves down to its bottom end and presses against the toothed plate, the vertical rod is limited and locked by the toothed plate, which also constrains and limits the auxiliary push block.

7. The optical glass production equipment according to claim 6, characterized in that: The vertical rod has a recessed side forming a rectangular groove. A horizontal plate is fixed near the lower end of the groove, extending into the bottom of the rectangular groove. A return spring is installed between the horizontal plate and the top wall of the rectangular groove, and the return spring applies an upward pushing force to the vertical rod. The bottom end face of the vertical rod is machined with a toothed groove, which can be engaged and locked with the teeth of the locking plate. The limiting block is vertically raised along the adjusting block under the drive of the built-in telescopic spring.

8. The optical glass production equipment according to claim 5, characterized in that: The inner side of the limiting block is provided with a T-shaped groove, and a push plate is slidably inserted into the upper part of the T-shaped groove. An abutment plate is provided at the bottom of the T-shaped groove, and a connecting rod is rotatably connected between the push plate and the abutment plate through a shaft. A return spring is also fixed between the push plate and the T-shaped groove.

9. An optical glass production equipment according to claim 8, characterized in that: A limiting rod is also fixed to the wall of the T-shaped groove. The limiting rod is close to the lower end face of the push plate and is used to limit the rotation range of the connecting rod. When the push plate retracts and drives the connecting rod to swing, the connecting rod forms a fulcrum and flips based on the limiting rod.

10. An optical glass production equipment according to claim 9, characterized in that: The bottom of the push plate has an angled groove for connecting and rotating the connecting rod, while the abutment plate has a through slot for installing the connecting rod. A torsion spring is installed in the slot, and the two ends of the torsion spring are fixed to the connecting rod and the inner wall of the slot, respectively. The connecting rod and the abutment plate form an angle through the torsion spring.

Images